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Localization and Extended ServicesLocalization and Extended Services
NFAIS/NISO Linking WorkshopNFAIS/NISO Linking Workshop
February 24, 2002February 24, 2002
Miriam BlakeMiriam Blake
Los Alamos National LaboratoryLos Alamos National Laboratory
NFAIS Workshop February 2002
LocalizationLocal (library) control of what and whereRequires:
• Way to reroute resolution
OpenURL
• Place to reroute to
Local resolution server (link-server)
NFAIS Workshop February 2002
Source 1
1. Source OpenURL enabled by Service Provider
OpenURL hookpresented to user
Resources and Services
2. User clicksOpenURL
3. Metadata andcontext info are transported
• Other relevant services • Appropriate copy (full text)
(extended services)
Local ResolutionLink Server(SFX, etc.)
NFAIS Workshop February 2002
OpenURL Link Server
A resolver which “decodes” the OpenURL and redirects the link to the appropriate resource
In practice, a software suite and database that allows appropriate and extended services to be presented to the user
NFAIS Workshop February 2002
Extended Services
Appropriate copy Full Text
•Lookup authors in other databases•Check whether authors are cited•Find author email address on web
Does library have print holdings of this journal?
If full-text not available, howabout document delivery?
NFAIS Workshop February 2002
Show Relevant Services
Library maintains control and decision making
Rules database – controls service parameters Thresholds
ISSN? ArticleDate
Show Full-text
link Yes, ISSN exists
Date >= our EJ access
NFAIS Workshop February 2002
Sources, Services & Targets
SourceSource – – reference/citation you start with and want to link from
ServicesServices – – list of objects you can retrieve based on the source metadata
TargetsTargets – – where you will end up (full text repository, database, website, etc.)
NFAIS Workshop February 2002
Metadata and Extended Services
How detailed is the metadata passed from the source?
–Reference citation : briefGomes JF, Sotkov GM and Zimmerman AM 1999 Ann Phys NY 274 289-362
–Abstract / Full citation : detailedIncludes all authors, title, subjects, abstract, other tagged data fields, other numerical identifiers (ISSN, CODEN, SICI, etc)
NFAIS Workshop February 2002
Metadata on the OpenURL
Metadata is transported implicitly– by using identifiers to FETCH metadata
ORORMetadata is transported explicitly - by
value – on the OpenURL Supports 7 “core” genres Very simple metadata scheme
NFAIS Workshop February 2002
Source 1OpenURL Link
BASE-URLLink Server(SFX, etc.)
•Database is identified by sid •Source hook contains record retrieval id•OpenURL sees BASE-URL (user context)
Retrieval rules for source database (sid) are processed
Record metadata is requested viarecord ID
Record metadata is returned and processed to determine services
Explicit Fetch
pid = 10022211
Services
NFAIS Workshop February 2002
Source 1OpenURL Link
BASE-URLLink Server(SFX, etc.)
•Database is identified by sid •Source hook contains metadata•OpenURL sees BASE-URL (user context)
•Retrieval rules for source database (sid) are processed•Metadata is processed todetermine services
Implicit Fetch
Services
genre=article&issn=1234-5678&volume=12&issue=3&spage=1&epage=8&date=1998
NFAIS Workshop February 2002
Metadata and Extended Services
Metadata must be available for services to Metadata must be available for services to be presentedbe presented External sources – metadata can come from External sources – metadata can come from
CrossRef / publisher /etc.CrossRef / publisher /etc. Control over source means control over metadataControl over source means control over metadata
NFAIS Workshop February 2002
A Wide World of Variations
Metadata quality varies greatly Linking systems which currently rely on
metadata may be helped by use of DOI Extended services will continue to use
metadata – from one place or another Quality and quantity both effect services
NFAIS Workshop February 2002
http://lib-www.lanl.gov/lww
Information on SFX and related developmentswww.sfxit.com
